It is proposed that this filing will become effective: (check appropriate box)

X

immediately upon filing pursuant to paragraph (b)

on [date] pursuant to paragraph (b)

60 days after filing pursuant to paragraph (a)(i)

on [date] pursuant to paragraph (a)(i)

75 days after filing pursuant to paragraph (a)(ii)

on [date] pursuant to paragraph (a)(ii) of Rule 485

If appropriate, check the following box:

this post-effective amendment designates a new effective date for a previously filed post-effective amendment

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies
that it meets all of the requirements for effectiveness of this Amendment to the Registration Statement on Form N-1A, pursuant
to Rule 485(b) under the Securities Act of 1933, and has duly caused this Amendment to its Registration Statement to be signed
on its behalf by the undersigned, thereto duly authorized in the City of San Francisco, State of California on the 20th day
of March, 2013.

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment No. 293 to its Registration Statement
on Form N-1A has been signed below by the following persons in the capacities and on the date indicated: